Tony Cappellini wrote: > >From Kent > >>You don't say what OS you are running but under Windows it is trivial to > >>have multiple versions of Python installed, I have 2.3, 2.4 and 2.5. > >>They are each in their own directories, all in the system path. I have > >>aliases called py23, py24 and py25 that let me launch the version I > >>want. I'm pretty sure you can do something similar with other OSes. > > If you want script abc.py to run with python 2.3, and script xyz.py to > run with 2.5, how can you control this form the command line?
I have Python 2.3, 2.4 and 2.5 all installed on my PC. All three directories are in my PATH. As it happens Python2.4 is first in the path so if I just run 'python' I get Python 2.4. In each Python directory I have a copy of python.exe that is named py2x; i.e. py23.exe, py24.exe, py25.exe. python.exe is small so I don't mind copying it; a shortcut would probably work as well. Since each dir is in the path, I can select which version to run by the name of the exe. > > python abc.py py23 abc.py > > vs > > python xyz.py? py24 xyz.py > > > One task I'm faced with is evaluating the benefits of migrating a huge > framework from 2.3 to 2.4? > I'd rather use two machines for this rather than install 2.4 on my 2.3 > machine. > > If I need to make any changes in the scripts to work on 2.4, I don't > want that interfering with a fully-working 2.3 environment. You should be able to have two copies of the scripts on your machine, a working production copy and a development copy. Kent > _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
